From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Baltieri Subject: Re: [GIT PATCH] USB patches for 3.9-rc1 Date: Fri, 22 Feb 2013 22:51:58 +0100 Message-ID: <20130222215158.GA4723@balto.lan> References: <20130222085954.GA4352@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-ee0-f41.google.com ([74.125.83.41]:59281 "EHLO mail-ee0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756963Ab3BVVwK (ORCPT ); Fri, 22 Feb 2013 16:52:10 -0500 Received: by mail-ee0-f41.google.com with SMTP id c13so566376eek.0 for ; Fri, 22 Feb 2013 13:52:09 -0800 (PST) Content-Disposition: inline In-Reply-To: <20130222085954.GA4352@redhat.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Dave Jones Cc: Greg KH , Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, tianyu.lan@intel.com, "Rafael J. Wysocki" , linux-acpi@vger.kernel.org On Fri, Feb 22, 2013 at 03:59:54AM -0500, Dave Jones wrote: > On Thu, Feb 21, 2013 at 10:40:10AM -0800, Greg KH wrote: > > > USB patches for 3.9-rc1 > > > > Here's the big USB merge for 3.9-rc1 > > > > Nothing major, lots of gadget fixes, and of course, xhci stuff. > > I get no USB devices recognised when I insert them any more, which > I think is pretty major. I suspect it has something to do with this ? > > > Lan Tianyu (12): > > usb: add runtime pm support for usb port device > > usb: add usb port auto power off mechanism > > It looks like every port on my laptop is powered down, as I can't > even charge devices with it. Hi Dave, I have the same problem (and almost the same laptop, Thinkpad T430 here), all external USB ports without power - even the always-on one :-). The bug seems to be ACPI related, I bisected it down to this patch: f95988d ACPI / scan: Treat power resources in a special way In the dmesg I have some error like these: ACPI: Power Resource [PUBS] (on) ... pci 0000:00:14.0: System wakeup disabled by ACPI for the USB controllers in the broken kernel, there are some in your dmesg too. I'll try to come up with a fix for current mainline, but all the acpi stuff is quite obscure to me and the patch does not revert cleanly, maybe Rafael (in CC) has some idea! Fabio -- Fabio Baltieri